Results 71 to 80 of about 73,713 (196)

Spectrum of SU(2) lattice gauge theory with two adjoint Dirac flavours [PDF]

open access: yesJournal of High Energy Physics, 2009
An SU(2) gauge theory with two fermions transforming under the adjoint representation of the gauge group may appear conformal or almost conformal in the infrared. We use lattice simulations to study the spectrum of this theory and present results on the masses of several gauge singlet states as a function of the physical quark mass determined through ...
Hietanen, Ari J.   +3 more
openaire   +2 more sources

Radiative neutrino mass models from non-invertible selection rules

open access: yesJournal of High Energy Physics
We apply non-invertible selection rules coming from a fusion algebra to radiative neutrino mass models where fields are labeled by the elements in the algebra.
Tatsuo Kobayashi   +2 more
doaj   +1 more source

Texture-zero patterns of lepton mass matrices from modular symmetry

open access: yesJournal of High Energy Physics, 2023
Texture zeros in fermion mass matrices have been widely considered in tackling the Standard Model flavour puzzle. In this work, we perform a systematic analysis of texture zeros in lepton mass matrices in the framework of Γ 3 ′ ≅ T ′ $$ {\Gamma}_3 ...
Gui-Jun Ding, F. R. Joaquim, Jun-Nan Lu
doaj   +1 more source

On the suppression of flavour changing neutral processes in technicolour theories

open access: yesPhysics Letters B, 1982
Abstract We present, in a form of a theorem, a mechanism for the suppression of flavour changing neutral currents in theories with technicolour. This mechanism prevents purely hadronic and leptonic flavour changing neutral processes, however it allows for semileptonic processes, such as K L → e μ or K → πeμ with BR 10 ...
A. Masiero   +2 more
openaire   +1 more source

Quark-lepton mass relations from modular flavor symmetry

open access: yesJournal of High Energy Physics
The so-called Golden Mass Relation provides a testable correlation between charged-lepton and down-type quark masses, that arises in certain flavor models that do not rely on Grand Unification. Such models typically involve broken family symmetries.
Mu-Chun Chen   +3 more
doaj   +1 more source

Aspects of Neutrino Oscillation in Alternative Gravity Theories

open access: yes, 2015
Neutrino spin and flavour oscillation in curved spacetime have been studied for the most general static spherically symmetric configuration. Using the symmetry properties we have derived spin oscillation frequency for neutrino moving along a geodesic or ...
Chakraborty, Sumanta
core   +1 more source

Supersymmetric Indices of 3d S-fold SCFTs [PDF]

open access: yes, 2019
Enhancement of global symmetry and supersymmetry in the infrared is one of the most intriguing phenomena in quantum field theory. We investigate such phenomena in a large class of three dimensional superconformal field theories, known as the S-fold SCFTs.
Garozzo, Ivan   +3 more
core   +2 more sources

Non-holomorphic modular flavor symmetry

open access: yesJournal of High Energy Physics
The formalism of non-holomorphic modular flavor symmetry is developed, and the Yukawa couplings are level N polyharmonic Maaß forms satisfying the Laplacian condition.
Bu-Yao Qu, Gui-Jun Ding
doaj   +1 more source

A note on the holography of Chern-Simons matter theories with flavour [PDF]

open access: yesJournal of High Energy Physics, 2009
21 pages, 3 figures, references added, minor changes (in particular Fig. 2)
Hohenegger, Stefan, Kirsch, Ingo
openaire   +2 more sources

Higgs and flavour as doors to new physics

open access: yes, 2016
A natural solution to the hierarchy problem of the Fermi scale motivates signals of New Physics at current and near future experiments. After a critical synthesis of this general motivation, we concentrate our attention on the interplay between LHC ...
Sala, Filippo
core   +1 more source

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